Dual-polarized slot coupling antenna

Abstract

The utility model discloses a dual-polarized slot coupling antenna which comprises a feed network and a radiation sticker, wherein the feed network comprises a substrate, wherein the lower surface of the substrate is completely covered by copper, so that a first copper-covered region is formed; the upper surface of the substrate comprises a second copper-covered region and two independent rectangular regions with the same structures; each rectangular region comprises an upper edge, a bottom edge and two side edges; copper sinking via holes which are uniformly arrayed are formed in the upper edge and the two side edges; a slot region and a feed end are arranged in a region surrounded by all the copper sinking via holes; the slot region is close to the center of the substrate; the slot region is positioned in a positive projection region of the radiation sticker on the substrate; the feed end is close to the bottom edge; the part below the feed end in the rectangular region is a blank region. The dual-polarized slot coupling antenna has the advantages that all the back part of the feed network is ground plane metal; a feed microstrip line is arranged on the upper surface of the feed network, so that the feed network cannot radiate the back surface, the front-to-back ratio cannot be affected, and the influence due to an antenna mounting environment can be avoided.

Description

technical field [0001] The invention relates to a dual-polarization antenna applied to wireless communication, in particular to a dual-polarization slot-coupled antenna capable of realizing polarization diversity and integrating transceiver. Background technique [0002] The current communication system is duplex work, which can not only transmit signals, but also receive signals. In order to realize duplex work, two antennas were used in the past, one is responsible for receiving electromagnetic waves, and the other is responsible for receiving electromagnetic waves. In this way, there are two Antennas are not only expensive, but also relatively large in size. It is not suitable for two antennas to transmit and receive in today's miniaturized communication systems. In order to solve the dual-antenna problem, a dual-polarized antenna solution is currently used. As long as the two ports of the dual-polarized antenna have good isolation, the transceiver can be integrated. One...

AI Technical Summary

Problems solved by technology

[0004] Its specific disadvantages: 1) The feeder is on the back of the ground plane, and it is easy to radiate to the back of the antenna, which reduces the antenna gain, reduces the front-to-back ratio, and increases the interference of the communication system;

[0005] 2) The feed network and gaps on the back are easily affected by objects on the back of the antenna, reducing isolation;

[0006] 3) The surface waves excited by the feed network and the gap in the medium are easy to interfere with each other and reduce the isolation

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